2.
    发明专利
    未知

    公开(公告)号:DK390375A

    公开(公告)日:1976-03-01

    申请号:DK390375

    申请日:1975-08-29

    Applicant: HOECHST AG

    Abstract: 1526264 Modified cellulose ethers HOECHST AG 29 Aug 1975 [31 Aug 1974] 35709/75 Heading C3A [Also in Division D1] A modified cellulose ether for improving the water-absorbing capacity and absorbtivity of a fibrous material is a carboxymethyl cellulose, carboxymethyl hydroxy-ethyl cellulose, methyl hydroxyethyl cellulose or hydroxyethyl cellulose which has been modified with a compound of one of the formulae: in which R 1 represents a hydroxyl, acyl amino or esterified carbamino group and R 2 represents a carboxyl group or hydrogen. The modified cellulose ether is applied to the fibrous material in conjunction with a fixing agent, the fixing agent being capable of reacting both with the modified cellulose ether and with the fibrous material, and being selected from carbamates, linear and cyclic urea-formaldehyde condensation products and derivatives thereof, melamineformaldehyde condensation products and derivatives thereof, vinyl acetate homopolymers, acrylic acid-based copolymers and vinyl acetate based copolymers, and is fixed on the material (seeDivisions D1 andD2).

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